diff options
| author | Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> | 2017-11-29 22:34:50 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-02-03 17:39:11 +0100 |
| commit | 8f8b2c79c4a39a7a0a1f5eb079586fce92794dc2 (patch) | |
| tree | 3cee794f97a861a1f57ecb44d031f30628e2bffa | |
| parent | 600c904b919a6c3e36cc93754c8941a7b0a1ec6b (diff) | |
quota: Check for register_shrinker() failure.
[ Upstream commit 88bc0ede8d35edc969350852894dc864a2dc1859 ]
register_shrinker() might return -ENOMEM error since Linux 3.12.
Call panic() as with other failure checks in this function if
register_shrinker() failed.
Fixes: 1d3d4437eae1 ("vmscan: per-node deferred work")
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Jan Kara <jack@suse.com>
Cc: Michal Hocko <mhocko@suse.com>
Reviewed-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | fs/quota/dquot.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c index 8406be97a518..4cd0c2336624 100644 --- a/fs/quota/dquot.c +++ b/fs/quota/dquot.c @@ -2985,7 +2985,8 @@ static int __init dquot_init(void) pr_info("VFS: Dquot-cache hash table entries: %ld (order %ld," " %ld bytes)\n", nr_hash, order, (PAGE_SIZE << order)); - register_shrinker(&dqcache_shrinker); + if (register_shrinker(&dqcache_shrinker)) + panic("Cannot register dquot shrinker"); return 0; } |